Nut-lock.



W. M. SANDERS.

NUT LOCK.

APPLIOATION FILED APR.15, 1912 1,042,484. Patented Oct. 29, 1912.

WILLIAM M. SANDERS, OF CINCINNATI, OHIO.

NUT-LOCK.

Specification of Letters Patent.

Patented Oct. 29, 1912.

Application filed April 15, 1912. Serial No. 690,690.

To all whom it may concern:

Be it known that 1, WILLIAM M. SANDERS, a citizen of the United States,residing at Cincinnati in the county of Hamilton and State of Ohio, haveinvent-ed certain new and useful Improvements in Nut-Locks,'of which thefollowing is a specification.

My invention relates to nut locking devices.

The object of my invention is to provide a simple locking device ofgreat efficiency and durability to be used particularly in connectionwith bolts and nuts for rails and the like.

My invention consists of a bolt having a portion of the periphery of thethreads fiattened to form a flat narrow surface on the threaded portionof the bolt to allow a key to slide thereon, a washer having wingspivoted thereto, said wings, being adapted to engage a nut whensaid nutis placed on the threaded portion of the bolt, a wire passing throughsuitable apertures in said wings when said wings are clamping said nut,said wire being adapted to be fastened, thereby holding said nut andsaid wings in close engagement with each other, and a key adapted toprevent the circumferential movement of said washer on said bolt.

My invention also consists in the combination of parts as herein setforth and claimed.

In the accompanying drawing which serves to illustrate the construction,appli cation and use of my invention: Figure 1 is a cross-sectional viewof a rail showing the fish plate in position and my improved nut lockingdevice mounted thereon and made in accordance with my invention; Fig. 2is a side elevation of the bolt and nut locking device shown in Fig. 1;Fig. 3 is a similar view showing the locking device with the wingsadapted to engage the flattened surfaces of the nut, showing one wing inengagement and the other wing out of engagement with said nut; Fig. 4 isa view of the washer, the wings of which are in their outermost or openposition, the bolt being shown in cross-section to show how the threadsare flattened to form a fiat surface for the key and to also show thekey way in said washer; Fig. 5 is a detail view of the bolt; Fig. 6 is aperspective view of the key; and Fig. 7 is a detail view of the nutshowing the slots cut therein for purposes which will be described.

I11 the embodiment of my invention as illustrated and which shows apreferred construction 1 represents a bolt which is of the type incommon use on railroads. The bolt has a head 2, an elongated shoulder 3to prevent it from turning and threads 4 at the end thereof. The bolt 1is provided with a narrow flat surface 5 in the threads thereof as bestshown in Fig. 5. The bolt 1 is shownmounted in a rail 6 having fishplates 7 at each side. When the bolt is mounted in said rail and fishplates, I place my improved locking device 8 thereon. Said device 8consists of a washer portion 9 adapted to surround the bolt 1 and saidwasher portion has ears 10 at each side and diametrically opposite eachother to which are pivoted wings 11. hen this locking device is placedon the bolt 1 the wings 11 are in their open position as shown in Fig. 4and in dotted lines in Fig. 1, thereby allowing free movement of thewrench when tightening the nut. These wings 11 are provided with a lugor extension 12 which is suitably pivoted to the ears 10 on the washerportion 9 of the locking device and held thereto by means of a pin 13.The washer portion is provided with an aperture through which the boltpasses and has a key-way 14 therein adapted to receive the key 15 (bestshown in Fig. 6). The key 15 is angular in shape, the portion 16 beingadapted to enter the key-way 14 and engage the flattened surface 5 onthe bolt 4. The locking device is placed. on the bolt as far as desiredand butts against the fish plate 7 as is shown in Fig. 1 thereby leavingplenty of room on the bolt for the nut 17.

After the nut is tightened sufficiently on the bolt 1, the wings 1.1 arebrought to the osition shown in Fig. 1 to engage the nut 17. If the nutdoes not happen to be turned to the proper position so that one of thecorners 18 engages the wings 11, said wings will engage the flatportions or facets of the nut equally well if said facets come torestbroadside to the wings 11. The wings 11 have a V-shaped recess 19therein which is adapted to engage or receive the corners 18 of the nut.However, the recess 19 is placed in such a manner as to leave flattenedsurfaces 20 on the engaging sides of the wings 11 so that they willengage the facets of the nut in case it happens to assume the positionshown in Fig. 3 when sufficiently tightened.

When the wings are placed in position to engage the nut, I thread a wire23 through the apertures 21 in the wings l1 and preferably fasten thewire at its ends by twisting said ends as shown at 22 in Fig. 1. Inorder that the wire 23 may not rest upon the sharp corners 18 of the nutI provide slots 24 across each corner of the nut as best shown in Fig. 7thus preventing the wire from being cut in case it were given a hardblow while resting on the corners 18 of the nut. When the wire issecurely fastened and tightened it is readily seen that the nut isabsolutely held in that position and cannot possibly be loosened withoutreleasing the wire 23. The locking device 8 cannot turn owing to thefact that the key 15 holds it from circumferential movement upon thebolt by said key engaging the surface 5 on the bolt, and the bolt cannotturn due to the shoulder 3 adjacent the head 2 of the bolt.

The fiat surface 5 on the threaded portion of bolt 1 need not extend thewhole distance on the thread portion which if it did would weaken thethreads a certain amountwhere the nut engages them but the flattenedsurface only extends the distance indicated in Fig. 5 thus allowing thenut 17 to practically always engage the threads their entirecircumferential distance.

While my device is specially adapted and intended for use to secure fishplates on railway joints it may also be used for various other purposes.

Modifications of my invention may be made without departing from thespirit or scope thereof and I do not wish to be confined to the exactdetails shown but what I claim as new and desire to secure by Let tersPatent is:

In a device of the character described, a bolt, a nut having slots inthe sides thereof extending transversely across its angular corners, awasher against which said nut is adapted to bear, wings pivoted at thesides WILLIAM "M. SANDERS.

Witnesses:

JAMEs N. RAMSEY, GOLDIE GORDON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

